Demountable rim.



C. J.- SEVERSN.

DBMOUNTABLE RIM.

PPLIGATIQN r Patented Oct. 13, 1914.

SHEETS- EBT ILED JUNE 19,1913

Ilwenor K 9 hisAlongs CARL J. SEVERSON, 0F MINNEAPOIJG. MINNESOTA.

DEMOUNTABLE RIM.

' Specification of Letters Patent.

Patented Oct. 13, 1914.

Application led J une 19, 1913. Serial No. 774.598.

tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My inventionhas for its object to provide an extremely simple and highly efiicient wheel rim which is demountable `fromthe wheel and vdetachable from the tire.

To the above ends, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

ln the accompanying drawings, which illustrate the invention, like charactersindicate like parte; throughout the several views.

Referring to the drawings: Figure 1 is a view in side elevation, showing the improved rim` applied to a wheel and pneumatic tire of the automobile type, some parts being broken away, and some of the, exposed parts being shown in section; Fig. 2 isa transverse section, taken on lthe line :c2

of Fig. 1; Fig. 3 is a transverse section,

l taken on 'the line m3 ms'of Fig. 1; Fig. 4 isv a perspective view of the demountable rim and pneumatic tire, some parts being broken away; Fig. 5 is a detail View partly in section and partly in edge elevation, showing the ends of the demountablerim and toggle acting connection therebetween and Fig. 6.

1s a transverse section taken through the demountable rim on the line we we of Fig. l..v

Referring to the wheel proper, the numerals 1, 2 and 3 indicate, respectively, the hub, spokes and wooden i'elly thereof, and the numeral 4: indicates a metal hoop which sur'- o'pn'ds and is preferably shrunk onto said Tbhe numeral 5 indicates the circumferentiallysplit outer casing 'and the'numeral 6 the inner tube of a'pneumatic tire of stand.- ard construction.

In accordance with my. invention,- the demountable rim 7 which, as shown, 1s of the straight wall type, is channel-shape in crosssection and the sides thereof are formed by rolling the longitudinal edges ofthe rim. lt is, of course, understood that the rim 7 may be of the clencher type if desired. Said rim is transversely divided and the ends thereof are reverse y beveled, as best shown 1n Fig. 5, to afi'ord an oblique j oint8. One end of the rim 7 is bifurcated and the prongs 9 thereof are secured to the other end of said rlm by a toggle acting connection in the form of a lever 10.

On each end portion of the rim 7 is secured a pair of inwardly projecting, transversely spaced lugs 11 and 12.- The lugs 1l are located one on each of the prongs 9 and are circumferentially spaced inward from the ends thereof, and the lugs l2 are located close to the joint 8. One end of the'lever 10 1s pivotally secured to and between the lugs 12, and the intermediate portion thereof is pivotally secured to and between the lugs 11. This lever 10 is, as shown, preferably constructed from a piece-of fiat metal, bent upon itself, ,and the sections thereof are secured together by rivets 13. The lever 10 is bent-on the ,arc 'of a circle having the same diameter as that of the wheel rim and .the lower section thereof is large enough t0 completely fill the spacebetween the prongs 9. The upper section of the lever 10, outward of the lugs y11, is materially wider than the underlying lower section thereof,

to' afford reversely extended flanges adapted toy overlap and rest upon he adjacent edge portions of the prongs 9 when the lever 10 lis closed. A turn button 14 is pivotally secured to the rim 7 adjacent to the inner ends ofthe prongs 9, and is engageable with the free end of the inner section of the lever l0, for holding the same seated between the said Prongs 9.

--So far as my invention is concerned, any suitable means may bey provided for demountably holding the improved rim on the wheel proper but, in the drawings, I have shown the same secured to the. permanent rim of the wheel, by means of an annular retaining flange 15 and a plurality of circumferentially spaced cam acting lock lugs 16, located, respectively, on vthe inner and Outer faces of the Wheel felly 3. Common 'draw bolts 17 are passed through the flange 15, felly 3 and lock lugs 16, for securing the flange 15 and lock lugs 16 to the felly 3 and fordrawin'g said lock lugs toward the flange 15, to force the jdemountable rim 7 against the flange 15, under a varying pressure. This rim securing means is of well known construction and forms no part of my present invention.

The lugs 11 and 12, to jwhichthe lever 10 is pivotally secured, are seated in perforations 18 formed in the metal hoop` 4 and the felly 3, to prevent creeping ofthe rim 7 with respect to the wheel proper. Coperating with the lugs 11 and 12 and'. located substantially diametrically opposite the same is a pair of circumferentially spaced lugs 19 and a single lug 20 interlocking therewith. The lugs 19 are rigidly secured to the periphery of the hoop 4; and the lug 20 is rigidly secured to the rim 7. In applying the demountable rim 7 to the wheel proper, the lugs 11 and`12 are first placed.

in the perforations 18 and the diametrically opposite side of the said rim is then moved laterally, to carry the lug 20 into interlocking engagement with the lugs 19.

The inner tube 6' is provided with the customary air valve 21 which projects through alined radial perforations 22 and 23 formed,

. respectively, in the rim A7 and in the felly 3 and hoopfl. By reference to Fig. 1, it will be noted that the perforation 22, for receiv'- and circumferentially of the other end of said rim and peels the rim from the tire. The circumferential movement of the bifuroated end of the wheel rim 7 contracts said rim sufficiently to permit the same to be removed from the tire without the use of any tools whatsoever. The oblique joint 8 prevents the ends of the wheelv rim from binding during the separation of the ends of the rim 7. During the process of removing wheel rim, repairs-.may be easily and quickly l made and pneumatic tires may be readily re moved without the use of tools. Furthermore, it is extremely simple and of comparatively small cost to manufacture.

What I claim is:

1. A transversely divided demountable wheel rim having one end bifurcated, and a lever intermediately pivoted to `the bifurcated end of said wheel rim, inward ofthe ends of the prongs thereof, and pivotally'secured, at one end, to the other end ofesaid wheel rim, said lever arranged to be seated between said prongs.

2. A' transversely divided demountable wheel rim having one end bifurcated, a lever yintermediately pivoted to the bifurcated end of said wheel rim, inward of the ends of the prongs thereof, and pivotally secured, at.

one end, to the other end' of said wheel rim, said' lever arranged to be seated between said prongs, and means for locking said lever between said prongs.

3. A transversely divided demountable wheel rim having one end-bifurcated, a lelver intermediately pivoted to the bifurcated end of said wheel rim, inward of the ends of the prongs thereof, and pivotally secured. at one end, to the other end of said wheel rim, said lever arranged to be seated between said prongs and provided with side flanges overlapping the adjacent edges of said prongs, and means for locking said lever between said prongs.

In testimony whereof I afiix my signature in presence of two witnesses.

CARL J .Y SEVERSON. Witnesses:-

AEMILY M. KING, HARRY D. KrLGonn. 

